case "strict", "optimal", "reduced", "disk", "auto":
	default:
		return cfg, fmt.Errorf("invalid value %v for list_quorum: will default to 'strict'", listQuorum)
	}
	cfg.ListQuorum = listQuorum

	replicationPriority := env.Get(EnvAPIReplicationPriority, kvs.GetWithDefault(apiReplicationPriority, DefaultKVS))
	switch replicationPriority {
	case "slow", "fast", "auto":
	default:

	// WorkerAutoDefault is default number of workers for "auto" mode
	WorkerAutoDefault = 100

	// MRFWorkerMaxLimit max number of mrf workers per node for "fast" mode
	MRFWorkerMaxLimit = 8

	// MRFWorkerMinLimit min number of mrf workers per node for "slow" mode
	MRFWorkerMinLimit = 2

	// MRFWorkerAutoDefault is default number of mrf workers for "auto" mode
	MRFWorkerAutoDefault = 4

		// PutObjectLegalHold
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.PutObjectLegalHoldHandler)).
			Queries("legal-hold", "")

		// PutObject with auto-extract support for zip
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HeadersRegexp(xhttp.AmzSnowballExtract, "true").
			HandlerFunc(s3APIMiddleware(api.PutObjectExtractHandler, traceHdrsS3HFlag))

	execTx = queryTx
	if m.DB.DryRun {
		queryTx.DryRun = false
		execTx = m.DB.Session(&gorm.Session{Logger: &printSQLLogger{Interface: m.DB.Logger}})
	}
	return queryTx, execTx
}

// AutoMigrate auto migrate values
func (m Migrator) AutoMigrate(values ...interface{}) error {
	for _, value := range m.ReorderModels(values, true) {
		queryTx, execTx := m.GetQueryAndExecTx()
		if !queryTx.Migrator().HasTable(value) {

		Name: "Profile", Type: schema.HasMany, Schema: "User", FieldSchema: "Profile",
		References: []Reference{{"ID", "User", "UserRefer", "Profile", "", true}},
	})
}

type Author struct {
	gorm.Model
}

type Book struct {
	gorm.Model
	Author   Author
	AuthorID uint
}

func (Book) TableName() string {
	return "my_schema.a_very_very_very_very_very_very_very_very_long_table_name"
}

	if err != nil {
		configLogIf(ctx, fmt.Errorf("Invalid site configuration: %w", err))
	}

	globalAutoEncryption = crypto.LookupAutoEncryption() // Enable auto-encryption if enabled
	if globalAutoEncryption && GlobalKMS == nil {
		logger.Fatal(errors.New("no KMS configured"), "MINIO_KMS_AUTO_ENCRYPTION requires a valid KMS configuration")
	}

	transport := NewHTTPTransport()

	bootstrapTraceMsg("initialize the event notification targets")

	type EmptyStruct struct {
		ID uint
	}
	DB.Migrator().DropTable(&EmptyStruct{})

	if err := DB.AutoMigrate(&EmptyStruct{}); err != nil {
		t.Errorf("no error should happen when auto migrate, but got %v", err)
	}

	if err := DB.Create(&EmptyStruct{}).Error; err != nil {
		t.Errorf("No error should happen when creating user, but got %v", err)
	}
}

	if err := DB.AutoMigrate(&MigrateInt{}); err != nil {
		t.Fatalf("Failed to auto migrate: error: %v", err)
	}

	// make new session to set custom logger tracer
	session := DB.Session(&gorm.Session{Logger: tracer})

	// The second AutoMigrate to catch an error
	if err := session.AutoMigrate(&MigrateInt{}); err != nil {
		t.Fatalf("Failed to auto migrate: error: %v", err)
	}
}

			}
			pkField = db.Statement.Schema.PrioritizedPrimaryField
			pkFieldName = db.Statement.Schema.PrioritizedPrimaryField.DBName
		}

		// append @id column with value for auto-increment primary key
		// the @id value is correct, when: 1. without setting auto-increment primary key, 2. database AutoIncrementIncrement = 1
		switch values := db.Statement.Dest.(type) {
		case map[string]interface{}:
			values[pkFieldName] = insertID

			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         apiListQuorum,
			Description: `set the acceptable quorum expected for list operations e.g. "optimal", "reduced", "disk", "strict", "auto"` + defaultHelpPostfix(apiListQuorum),
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{
			Key:         apiReplicationPriority,